Resources for Arabic

Morphology

Free software

• AraMorph - Perl - An Arabic morphological analyzer and part-of-speech tagger written in Perl (originally by Tim Buckwalter)
• AraMorph - Java - An Arabic morphological analyzer and part-of-speech tagger rewritten in Java for Lucene

Proprietary

• Xerox Arabic Morphological Analyzer and Generator

WordNets

Free software

• http://compling.hss.ntu.edu.sg/omw/ Hebrew Wordnet with links to all the other Open Multilingual Wordnets

Proprietary

• http://babelnet.org/ (available for download for "Non-Commercial" use)

Parsers

Free software

• Bikel's implementation of Collins Parser by Dan Bikel.
• Arabic dictionaries, by Jon Dehdari, for the Link-Grammar parser. These require the Aramorph stemming package, above.
• ElixirFM (online interface here) is a Functional Arabic Morphology written in Haskell and Perl; the lexicon is a "re-processed" version of the Buckwalter analyser.
• Sarf - Arabic Morphology System (all in Java)

Corpora

Proprietary

• Arabic Newswire Part 1, 76 million tokens, annotation: paragraphs

Free/open licence

• Meedan-Memory, Arabic-English TMX (sentence-aligned), ~467,000 words on the English side, Open Database Licence
• Quranic Arabic Corpus, 77,430 words of Quranic Arabic, with manually verified contextual POS, inflection, derivation; dependency grammar annotation is planned.
• Arabic NER corpora by Yassine Benajiba, 150,000+ words.
• UN parallel corpora
• HamleDT, harmonized dependency treebanks of many languages, common annotation style.

External links

• ACL/EACL 2001 Workshop on Arabic NLP
• Basic Arabic Processing Tools
• COLING 2004 Workshop on computational approaches to Arabic script-based languages